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Finding the Fourth Proportional to 5,600.88, 7,728.66 and 3,243.78

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Solution

The fourth proportional to 5,600.88, 7,728.66 and 3,243.78 is: 4,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.88 : 7,728.66 = 3,243.78 : x
  2. Step 2: Convert to fraction form
    5,600.88/7,728.66 = 3,243.78/x
  3. Step 3: Cross multiply
    5,600.88x = 7,728.66 × 3,243.78
  4. Step 4: Simplify right side
    5,600.88x = 25,070,072.73
  5. Step 5: Solve for x
    x = 25,070,072.73/5,600.88
  6. Step 6: Final answer
    x = 4,476.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.